/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */
package com.z.learnhttp.examplehttp;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
/**
 * This example demonstrates the use of the {@link ResponseHandler} to simplify
 * the process of processing the HTTP response and releasing associated resources.
 */
public class ClientWithResponseHandler {
	public final static void main(String[] args) throws Exception {
		CloseableHttpClient httpclient = HttpClients.createDefault();
		try {
			HttpGet httpget = new HttpGet("http://httpbin.org/");
			System.out.println("Executing request " + httpget.getRequestLine());
			// Create a custom response handler
			ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
				@Override
				public String handleResponse(final HttpResponse response) throws IOException {
					int status = response.getStatusLine().getStatusCode();
					if (status >= 200 && status < 300) {
						HttpEntity entity = response.getEntity();
						return entity != null ? EntityUtils.toString(entity) : null;
					}
					else {
						throw new ClientProtocolException("Unexpected response status: " + status);
					}
				}
			};
			String responseBody = httpclient.execute(httpget, responseHandler);
			System.out.println("----------------------------------------");
			System.out.println(responseBody);
		}
		finally {
			httpclient.close();
		}
	}
}

